Tide Gauge Data Example

WORLD METEOROLOGICAL ORGANIZATION
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MEETING OF EXPERT TEAM ON DATA REPRESENTATION AND CODES
EUMETSAT, 23-27 April 2007 / ET/DR&C/Doc. 3.1.3(1)
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(12.IV.2007)
ENGLISH ONLY

CREX Templates for tide elevation

Submitted by Secretariat

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Summary and Purpose of Document

This document contains a proposal for validation (developed by Dr Eva Cervena, Mr Atsushi Shimazaki, Dr Weiqing Qu and Dr Kelvin Wong) for additional representation of tide elevation in CREX with a view to help generation of Tsunami Warnings.

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ACTION PROPOSED

The meeting is invited to discuss the content of this document and make any appropriate recommendations.

Reference:

[1] Manual on Codes, WMO-No. 306, Volume I.2.

1) EXISTING COMMON SEQUENCES FOR SEA LEVEL DATA

(Tide report identification, water level checks, time increments)
D / 06 / 019 / B / 01 / 075 / Tide station alphanumeric identification
D / 01 / 011 / Year, month, day
D / 01 / 012 / Hour, minute
B / 22 / 042 / Sea/water temperature
B / 22 / 120 / Tide station automated water level check
B / 22 / 121 / Tide station manual water level check
C / 01 / 002 / Change data width to 2 characters
B / 04 / 015 / Time increment
B / 04 / 065 / Short time increment
(Meteorological parameters in tide station)
D / 06 / 021 / B / 01 / 075 / Tide station alphanumeric identification
D / 01 / 011 / Year, month, day
D / 01 / 012 / Hour, minute
B / 22 / 122 / Tide station automated meteorological data check
B / 22 / 123 / Tide station manual meteorological data check
B / 12 / 001 / Air temperature
D / 03 / 002 / Pressure, wind direction, wind speed
(Tidal elevation)
D / 06 / 022 / B / 01 / 075 / Tide station identification
D / 01 / 011 / Year, month, day
D / 01 / 012 / Hour, minute
B / 22 / 038 / Tidal elevation with respect to local chart datum
B / 22 / 039 / Meteorological residual tidal elevation (surge or offset)
(Tide elevation series)
D / 06 / 025 / D / 06 / 019 / Tide report identification, water level checks, time increments
R / 02 / 006 / Replicate 2 descriptors 6 times
B / 22 / 038 / Tidal elevation with respect to local chart datum
B / 22 / 039 / Meteorological residual tidal elevation (surge or offset)

*TIDE GAUGE DATA EXAMPLE IN CREX EDITION1*

CREX++

T000104 A001 D06025++

RI010 1998 01 23 15 00 2761 00 00 30 -30

01407 1225 01384 1217 01382 1221 01395 1220 01473 1262 01502 1227+

CT010 1998 01 23 15 00 2781 01 00 30 -30

02024 1757 02043 1717 02124 1728 02177 1716 ///// //// 02259 1670++

7777

Interpretation of the example:

LineGroupMeaning

1CREXIndicator of a CREX message

++Section Terminator: end of section 0 (Indicator Section)

2T000104CREX Master Table Number 00, Edition 01, Version 04

A0001Data type 001: Surface data - sea

D06024Tide elevation series

++Section Terminator: end of section 1 (Data description section)

3RI010Tide station RI010

1998Year: 1998

01Month: January

23Day: 23

15Hour: 1500 UTC

00Minute: 00

2761Sea/water temperature: 276.1 K

00Tide station automated water level check: Good data

00Tide station manual water level check: Operational

30Time increment: time is now hour 1500, minute 30

-30Short time increment: increment is applied prior to each replication of two descriptors indicated by the group R02006, thus the time is now hour 1500, minute 00

401407Tide elevation of 1407 mm at hour 1500, minute 00

1225Meteorological residual tidal elevation of 1225 mm at hour 1500, minute 00

01384Tide elevation of 1384 mm at hour 1400, minute 30

1217Meteorological residual tidal elevation of 1217 mm at hour 1400, minute 30

01382Tide elevation of 1382 mm at hour 1400, minute 00

1221Meteorological residual tidal elevation of 1221 mm at hour 1400, minute 00

01395Tide elevation of 1395 mm at hour 1300, minute 30

1220Meteorological residual tidal elevation of 1220 mm at hour 1300, minute 30

01473Tide elevation of 1473 mm at hour 1300, minute 30

1262Meteorological residual tidal elevation of 1262 mm at hour 1300, minute 00

01502Tide elevation of 1502 mm at hour 1200, minute 30

1227Meteorological residual tidal elevation of 1227 mm at hour 1200, minute 30

+Subset terminator: end of a report for station RI010

5CT010Tide station CT010

1998Year: 1998

01Month: January

23Day: 23

15Hour: 1500 UTC

00Minute: 00

2761Sea/water temperature: 276.1 K

00Tide station automated water level check: Good data

00Tide station manual water level check: Operational

30Time increment: time is now hour 1500, minute 30

-30Short time increment: increment is applied prior to each replication of two Descriptors indicated by the group R02006, thus the time is now hour 1500, minute 00

602024Tide elevation of 2024 mm at hour 1500, minute 00

1715Meteorological residual tidal elevation of 1715 mm at hour 1500, minute 00

02043Tide elevation of 2043 mm at hour 1400, minute 30

1717Meteorological residual tidal elevation of 1717 mm at hour 1400, minute 30

02124Tide elevation of 2124 mm at hour 1400, minute 00

1728Meteorological residual tidal elevation of 1728 mm at hour 1400, minute 00

02177Tide elevation of 2177 mm at hour 1300, minute 30

1716Meteorological residual tidal elevation of 1716 mm at hour 1300, minute 30

/////Tide elevation missing at hour 1300, minute 30

////Meteorological residual tidal elevation missing at hour 1300, minute 00

02259Tide elevation of 2259 mm at hour 1200, minute 30

1670Meteorological residual tidal elevation of 1670 mm at hour 1200, minute 30

++Section terminator: end of a report for station CT010; also, end of section 2 (Data section)

77777End of CREX message

2)PROPOSED OTHER NEW SEQUENCES

CREX Template for tide elevation - full version(in validation)

B / 06 / 026 / (CREX Template for tide elevation - full version)
(Station identification) / Chrs / Remarks
B / 01 / 075 / Tide station identification / 5
B / 01 / 015 / Station or site name / 20
D / 01 / 023 / B / 05 / 002 / Latitude / 4 / or B 05 001 (7)
B / 06 / 002 / Longitude / 5 / or B 06 001 (8)
(Reference date and time)
D / 01 / 011 / B / 04 / 001 / Year / 4
B / 04 / 002 / Month / 2
B / 04 / 003 / Day / 2
D / 01 / 013 / B / 04 / 004 / Hour / 2
B / 04 / 005 / Minute / 2
B / 04 / 006 / Second / 2
(Data for each sensor)
R / 16 / 002 / Replicate 16 descriptors 2 times / - / for two sensors
(Offset from reference date and time)
B / 04 / 016 / Time increment (offset) - in seconds / 4
(Identification of sensor)
B / 08 / 015 / Identification of primary or secondary sensor / 1 / new descriptor
B / 02 / 007 / Type of sensor / 2 / new descriptor
(Identification of quality check)
B / 22 / 120 / Tide station automated water level check / 2
B / 22 / 121 / Tide station manual water level check / 2
(Ocean depth)
B / 10 / 087 / Ocean depth(for DART and Ocean-bottom Cable typeinstruments) / 6
(Instantaneous data)
B / 04 / 016 / Time increment - in seconds / 4
R / 08 / 000 / Delayed replication of 8 descriptors / 4
B / 10 / 051 / Pressure reduced to mean sea level / 5
B / 22 / 038 / Tidal elevation with respect to local chart datum / 5
B / 22 / 040 / Meteorological residual tidal elevation (surge or offset) / 5
(Statistical data)
B / 04 / 026 / Time period or displacement (averaging period) - in seconds / 4
R / 03 / 004 / Replicate 3 descriptors 4 times / - / for 4 types of statistical obs.
B / 08 / 023 / First-order statistics (mean, max., min., standard dev.) / 2
B / 22 / 038 / Tidal elevation with respect to local chart datum / 5
B / 22 / 040 / Meteorological residual tidal elevation (surge or offset) / 5

CREX Template for tide elevation - reduced version

(Station identification) / Chrs / Remarks
B / 01 / 075 / Tide station identification / 5
B / 01 / 015 / Station or site name / 20
D / 01 / 023 / B / 05 / 002 / Latitude / 4 / or B 05 001 (7)
B / 06 / 002 / Longitude / 5 / or B 06 001 (8)
(Reference date and time)
D / 01 / 011 / B / 04 / 001 / Year / 4
B / 04 / 002 / Month / 2
B / 04 / 003 / Day / 2
D / 01 / 013 / B / 04 / 004 / Hour / 2
B / 04 / 005 / Minute / 2
B / 04 / 006 / Second / 2
(Offset from reference time)
B / 04 / 016 / Time increment (offset) - in seconds / 4
(Identification of sensor)
B / 08 / 015 / Identification of primary or secondary sensor for tide elevation / 1 / new descriptor
B / 02 / 007 / Type of sensor / 2 / new descriptor
(Identification of quality check)
B / 22 / 120 / Tide station automated water level check / 2
B / 22 / 121 / Tide station manual water level check / 2
(Ocean depth)
B / 10 / 087 / Ocean depth（for DART and Ocean-bottom Cable type instruments） / 6
(Instantaneous data)
B / 04 / 016 / Time increment - in seconds / 4
R / 03 / 000 / Delayed replication of 3 descriptors / 4
B / 10 / 051 / Mean sea level pressure / 5 / instantaneous value
B / 22 / 038 / Tidal elevation with respect to local chart datum / 5
B / 22 / 040 / Meteorological residual tidal elevation (surge or offset) / 5

Code tables for sea level data

0 08 015 - Significance qualifier for sensor

0Single sensor

1Primary sensor

2Secondary sensor (Backup sensor)

3-6Reserved

7Missing value

(7-9Not used in CREX)

0 02 007 – Type of sensor for sea level

0Reserved

1Floating

2Ultrasonic

3Radar

4Pressure

5-14Reserved

15Missing value

(15-99Not used in CREX)

*TIDE GAUGE DATA EXAMPLE IN CREX EDITION2

CREX++

T0002051301 A001031 P00034000 U00 S001 Y20061109 H0930 D06026++

24 TOKYOHARUMI 3565 13977 2006 11 09 09 30 00

-0900 1 01 00 00 ////// 0060 0015

10105 00700 00030 -0060 04 00500 00025 02 00900 00020 03 00300 00030

10 ///// ///// 10105 00700 00030 -0060 04 00500 00025 02 00900 00020

03 00300 00030 10 ///// ///// 10105 00700 00030 -0060 04 00500 00025

02 00900 00020 03 00300 00030 10 ///// ///// 10105 00700 00030 -0060

04 00500 00025 02 00900 00020 03 00300 00030 10 ///// ///// 10105

00700 00030 -0060 04 00500 00025 02 00900 00020 03 00300 00030 10

///// ///// 10105 00700 00030 -0060 04 00500 00025 02 00900 00020 03

00300 00030 10 ///// ///// 10105 00700 00030 -0060 04 00500 00025 02

00900 00020 03 00300 00030 10 ///// ///// 10105 00700 00030 -0060 04

00500 00025 02 00900 00020 03 00300 00030 10 ///// ///// 10105 00700

00030 -0060 04 00500 00025 02 00900 00020 03 00300 00030 10 /////

///// 10105 00700 00030 -0060 04 00500 00025 02 00900 00020 03 00300

00030 10 ///// ///// 10105 00700 00030 -0060 04 00500 00025 02 00900

00020 03 00300 00030 10 ///// ///// 10105 00700 00030 -0060 04 00500

00025 02 00900 00020 03 00300 00030 10 ///// ///// 10105 00700 00030

-0060 04 00500 00025 02 00900 00020 03 00300 00030 10 ///// /////

10105 00700 00030 -0060 04 00500 00025 02 00900 00020 03 00300 00030

10 ///// ///// 10105 00700 00030 -0060 04 00500 00025 02 00900 00020

03 00300 00030 10 ///// /////

-9000 2 02 00 00 ////// 0060 0015